Working example for my a d ..puzzlepiecing the windowdrag escape scene. Rotoscoping (animation/frame by frame) to redo for a foul up choice trying to squeeze play and rushjob a raw chroma overlay hardcopy using the black negative space as chromakey; hence, taking the unnecessary time to fill in the bleed thrus with dark colors close to the "black" traslated by the chroma setting. I could have realigned the videos to the original registry, but, that was, sorely..and I blame it completely on the software, problematic. Lastly, several registry bump-tos using chroma overlays and underlays. The hot pink, f.y.i, on archive's description section of the upload page, is a perfect chromakey. The method to the madness are test trials. Sometimes, oftentimes, the pre render shows the chromakey at a lower percentage setting for threshold, but its invisible in the final output render video.